[cachetools] Update to 7.0.* (#15357)

[tkem]

Update stubs for cachetools v7.0 (#15357).

Also support generic timer and ttl types with TTLCache and TLRUCache (#14585.).

[github-actions]

Diff from mypy_primer, showing the effect of this PR on open source code:

mypy (https://github.com/python/mypy)
  .../projects/mypy/mypy/__init__.py: error: INTERNAL ERROR -- Please try using mypy master on GitHub:

prefect (https://github.com/PrefectHQ/prefect)
+ src/prefect/settings/sources.py:27: error: "TTLCache" expects 3 type arguments, but 2 given  [type-arg]
+ src/prefect/server/api/collections.py:13: error: "TTLCache" expects 3 type arguments, but 2 given  [type-arg]
+ src/prefect/concurrency/services.py:26: error: "TTLCache" expects 3 type arguments, but 2 given  [type-arg]
+ src/prefect/runner/_event_emitter.py:55: error: "TTLCache" expects 3 type arguments, but 2 given  [type-arg]
+ src/prefect/server/events/ordering/memory.py:57: error: "TTLCache" expects 3 type arguments, but 2 given  [type-arg]